Coronary CTA with 80 kV: Improving Image Quality with Reduced Radiation and Contrast Medium Dose

Takehito Shizuka, MD*, Haruka Iwase, MD*, Hiroaki Kobayashi, MD*, Yae Matsuo, MD*, Saburou Yanagisawa, MD*, Nobuaki Fukuda, MD*, Akihiro Saitou, MD*, Shitoshi Hiroi, MD*, Toyoshi Sasaki, MD*, Chikashi Negishi, MD**, Youichi Satou, MD** |  16-09-2013

*Department of Cardiology, National Hospital Organization Takasaki General Medical Center, Japan
**Diagnostic Imaging Center National Hospital Organization Takasaki General Medical Center, Japan

An 84-year-old female patient, with a history of hypertension and dyslipidemia, was hospitalized due to heart failure. Cardiac enzyme tests were normal. After an improvement of her heart failure, the first coronary CTA was performed. This revealed an aneurysm and a chronic total occlusion (CTO) of the left anterior descending artery (LAD) and a 75% stenosis of the right coronary artery (RCA) which was then treated with a stent. A second coronary CTA was performed to evaluate the characteristics of the CTO after the intervention.


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The outcomes by Siemens Healthineers customers described herein are based on results that were achieved in the customer’s unique setting. Since there is no “typical” hospital and many variables exist (e.g., hospital size, case mix, level of IT adoption) there can be no guarantee that other customers will achieve the same results.